Fastening device



Feb. 10. 1925. 1,525,822 c. NALLE FASTENING DEVICE Filed Sept. 29, 1925 --1netalli'c wedges and staples for engaging wire strands which are expandedby contact l 'atentecl Feb. 10, 1925.

orraannsa. NALLE, or wron re rants, runes.

EASTENINQ- DEVICE.

Application filed September '29, 1923. Serial .No. 665,735.

To all whom it may concern:

Be it-knownlth'at LCHAnLEs R; NALLE, citizen of -th'eUnited States of America, residing at I/Vichita Falls, in the county of W-ichita and State of Texas, have invented certain new; and useful Improvements in Fastening Devices (Case 13), of whiclrthe following is a specification.

Thepresentinvention resides in the .-.provision of means for securing wires and /particularly fence wires to concrete or metallic postsand consists in the provision oi wedges for bending or clinching the conventional staples; to spread their extremities and f et- --fect a bindingengagement with-the post the nstaples" straddling the wires in the usual manner.

More specifically the device includes a postotormed openings in which are arranged detachable with-the wedge faces and caused to spread or penetratebeyond the slots or openings for locking engagement with the post.

This-devicealso includes a wedge structure-formed with a cross-head to limit the movement of i the Wedge and also to act as a seat "for the wire strand at its point of engagement with the staple thereby insuring a firm and rigid connection.

Other features will more clearly hereinafter appear by reference to the accompanying drawings forming a part of tlns nvention and wherein like numerals oi": reierence designate corresponding parts throughout the several views, in which:

Figure 1 is a front elevation of a post constructed in accordance with the present invention showing some of the strands broken away.

Figure 2 is a side elevation of a. post parts being broken away to show the arrangement within the slots.

Figure 3 is a section through one 0.1". the openings showing the present device in porntion before the staple is driven into engagement with the wedge.

Figure 4 is a similar view showing the staple in position after engagement with the wedge.

Figure 5 is a top plan view or expander, and

of the wedge tically aligned elongated slots PE I 1 S ea h :Sllaped body 2, 110C157! Portion 2 W1tl1 suitably spaced; slots or shank portion 380 that the arms 5 and extend at right angles to the flattened hwy-b stra body and head, which are. at an; angle to within the opening Figure 6 is a .sectional view showing a modified form of the wedge designed for use in connection with hollow metallicposts.

Referring now to the detailedconstruction, I have, shown in Figures Land 2 aco ncrete post construction provided withyersuitably spaced to produce the-desired distance, between strands. These slots indicated by reference character 1 are of any-desired depth dependent uponthe type of fastener tobe vutilized aswill more; clearly hereinafter, ap-

pear.

I Arranged within the slots are the, staple comprising the flat wedge sank 8 and-he T1 1, i suitabl dim i fit snugly within the slot and tapers graduall inward. toward the shank portion 3 whici latter issubstantially square in cross section. Zlhe head 4t may be tormed by twisting the 6 wedgesshapedbody 2. The shank need not be twisted in theusual sense of, the word, but

ght connection between vthe each other,--and,the term twisted iswused in a relative sense. These arms 5 and 6 extend laterally oi the body a sufficient distance to permit a substantial engagement with the outer face or the post to provide a suitable support for the body 2 during the seating of the staple 7. This staple 7 may be of the conventional U-shaped type and the extremities of the prongs are sharpened as at 9 by being beveled on their inner faces, the angle of the bevel being in substance identical with the angle of the wedge-shaped body 2 to permit proper engagement between these parts.

In Figures 3 and 4: there is shown in detail a staple expander arranged in a suitable slotin a concrete post. In the former figure, the staple 7 is shown straddling the wire strand 10 and the. beveled extremities of the staple resting against the tapering faces of the wedge. In the latter figure the staple has been driven home and the staple extremities are shown penetrating the walls of the slot, being forced into such walls by the tapered faces of the expander Particular attention is called to the fact that the wire 10 after the staple has been driven.

into position, is firmly clamped between the latter and the outer face of the head l'and due to the Width of this head is no way bent or. twisted so as to injure same.

In Figure 6 the present device is shown applied to a hollow metallic post. This post indicated by reference character 11 is formed with suitably spaced openings 12 which correspond to the slots in the concrete post heretofore described. In connection with this type of post it has been found advisable to alter slightly the construction :of the staple expander by providingthe lips 14 the inner faces of which are substantially transverse to the longitudinal axis of the body. These lips 14 tend to direct the staple extremities outward against the innerwall of the hollow pest body and clinch the same thereagainst.

In use with either type ofpost the wedgeshaped body of the'expander is inserted in the slot or opening until the lateral arms 5 and 6 engage the outer face of the post. These arms, it is obvious, prevent the loss or displacement of the expander and retain the latter in accessible position at all time. After inserting the expander the staple is caused to straddle the wire and the extremitiesof the staple are inserted in the slot or opening to cause the beveled faces of the latter to engage the tapered faces of the wedge. When in this position, which is clearly shown in Figure 3, the parts are all in readiness for the seating of the staple which is accomplished by a suitable tool. In the instance of a concrete post the staple then assumes the position shown in Figure 4 or in case of a hollow metal post the position shown in Figure 6, binding the wire securely against the head.

By a careful examination of this invention it will be obvious that while the substance of the device is illustrated by the accompanying drawings and specifications numerous changes may be made in the details of construction and arrangement of parts without departing from the spirit of the invention.

The staple expanders may be made by twisting the head a at right angles to the body 2 or by casting or drop forging.

lVha-t I claim as new and useful and desire to secure by Letters Patent, is

l. A wire fastener element comprising an integral structure and including a body portion formed with integral inclined faces,a head portion including laterally extending arms, and a reduced shank portion between the body and head portions, said shank being relatively twisted to arrange said arms at an angle to said body portion.

2. In combination with a post formed with an opening, means for securing a wire across said opening including a staple for engaging said wire, an expander comprising a body portion arranged in said opening and formed with inwardly inclined faces, a relatively twisted shank portion, and a head portion comprising lateral transverse arms for engaging the outer faces of said post, said staple being adapted to straddle said head to clamp the wire thereto, and the extreinities of said staple engaging the inclined faces of said expander and penetrating beyond the walls of said opening.

In testimony whereof I afiix my signature.

CHARLES R. NALLE. 

